Improvement in ice-macninesv



D'. Hennen, or New ORLEANS. Louisiana Specication:formingkpartofilietters Patent No.A 952,347, datedSeptember 28;,1869:

ov all whom it may concern:

Beit known that I, D.l L. HOLDEN, of New Qrleans, inv the parishof Orleans and State of Louisiana,havel inventedl a' new and- Improved Ice-Machine; and I do hereby declare thatthefollowing is` a full, clear, and

exact description of the constructionand operation ofthe same, referencel being had vto the accompanying drawings, making a part of this speciii'cation, in whichment and combination of all'the parts, whereby the whole is greatly simplied, and its cost and expense of running reduced, while'its effectiveness is increased. l

In the drawings, A is the freeZ'i'n'g-cstern, in which the pans or vessels-,of water to be frozen are arranged. InL this cistern `is a series of hollow boxes or shells, B B, into the interior of which the gasoline, Src., is sprayed, and which conduct the cold thereby produced to the salt water or other incongealable liquid with which the cistern is filled, and, by means of the same, to the water-vessels. The shells may be provided with a great number of short tubes, b b, extending laterally through them,

vfor the purpose of exposing as large a surface as possible to the contact of the salt water. Instead of the series of shells, a series of pipes, C C, may be employed, arranged in vertical sections or rows, and all the pipes of each section being connected with a vertical discharge-pipe, D, at one end, and a vertical supply-pipe, E, at the other.

rEhe volatile fluid or vapor is injected into the shell B or tubes C C from the pipe E, through a small sprayer, G, Fig. 3. It immediately expands in the cavity of the shell or tubes, producing thereby an intense cold.

At the opposite: end of thev shell ortubes, asv the case may be, and in the pipe D', the vapor" again becomes-condensed,l and; assuming the liquid form, passes oftfthrough; the pipezFfto.` thepu'mp-H,by which: 'it isl forced `into-,theV

reservoir I. From the reservoir itk is com ducted ley-.means of a; pipe, J, tofthe well.- tube K, and thence,.through a-pipe, L,*to the supply-'pipe E, havingl thus madethe circuit of the entire apparatus.

When" the condensed` gasoline. or othersurb' stance first escapesl fromfthe freezing'appazratusit isistillV intensely cold, and* I therefore makeuseofpit atv this'- point,`.through= the iI1` strumentality of acooling -vessel,f M=, coniducting it .through said cooler-in a coil, F, to

reduce to aver-y lowv temperature thefwater. that is to'be-frozen before it isfputi-nto the pans and set into the freezfing-cistern.

"The function of the pump H is to exhaust y the'liquor:Y from the freezing apparatus and. force it (by atmospheric or other pressureltq the reservoir. l 'Ihevlatter isprovided witha cock, c', at the bottom", through which any water that might bev intermingledj with the lighter duid: could be drawn. oli after'it had settled toy the bottom of vthe reservoir.,V Thel reservoirjis'also provided with a screw-capor cover, h, suitably packed, through which tointroduce the gasoline before starting the ap'- p'aratus.

The pipe J is provided with a cock, m, which is not to be opened till, by the action of the pump, a suitable pressure is exerted upon the liquid in the reservoir to' force it with great violence through the sprayers into the freezing chambers or pipes.

The function of the well-tube K is to cleanse and purify the liquid. To this end it is placed in a vertical position, and the pipe J is introduced into it at a point somewhere near its center, in order that water and other impurities may have a free space below the moving currents into which they may settle and rest undisturbed. At its lower end it is provided with a cock, k, by which to draw off such impurities when necessary. It is also provided with a strainer, n, across its upper end, just below the entrance to pipe L, to prevent any impurities from entering saidpipe. It may also have a screw-cap, K', which can be removed in order to take out and cleanse the strainer, Src. The pipe L may have a cock, Z, between the well-tube and the supplypipe E. f

I construct the sprayers in the following manner:

First, the tubes C C. or the short tubular passages into the freezing-chambers B B, are screwed into the wall of pipe E, as shown in Fig. 3, at e. The inner wall of said tubes C C, or tubular connections, is cnt into a female screw, and the sprayer G--a short tube having a minute passage through it-is screwed into the end of the pipe (l, or connecting-pipe, as clearly shown in Fig. 3. Opposite the end of the pipes C C an opening is cut through the wall of pipeE large enough `to admitof the introduction of the sprayer through it.` This opening, when the machine is inoperation, is closed by 'a screwplug, a. Both vthe outer endof the screw-plugs and the end of the sprayers that is not-.in the pipes ,C C are so formed that by means of a key (resembling a watch-key) 'they can be inserted and screwed tightly into place, or unscrewed and removed, as occasion may require.

I claim in this part of my invention a particular and important advantage over every apparatus heretofore constructed for a similar purpose, in that, by simply removing the plugs u a., or any of them, any one or all of the sprayers G Gr may be removed and cleaned or repaired without in any manner interfering with or disturbing the other parts ofthe machine.

Instead of screwing the end of the horizontal pipes 'into the vertical tube E, the latter maybe cast with projecting flanges or short tubular arms upon its side, over or into which the ends of the horizontal pipes can be screwed, bolted, or otherwise irmly secured, the sprayers screwing into the ends of the horizontal pipes, as above described; or, if preferred, screwing -through the wall of tube E, so that their inner end shall project into the cavity of pipes G O. Any other suitable connection of theseparts may be employed that will admit, on the one hand, oi' the convenient attachment of the pipes C (l, E, and D, and their separation, and, on the other, will admit of introducing and removing the sprayers in the manner above described.

The method of operating this machine is very simple and convenient. The water to be frozen is placed in vessels of suitable `shape and material, which are then set into the salt water between the vertical series of chambers B B or horizontal pipes C C. Of course the water-vessels nearest the sprayers are sub jected to the greatest degree of' cold, and the water in them is frozen before the water in the vessels at the other end of the freezingcistern. As fastas such' vessels thus have their contents-cougealed they-'are removed, and the whole series of vessels in that row are pushed along,rleaving4 an empty `space next to pipe D, into which a fresh'vessel (just iilled from cooler M) is set, and this process is continued as long as themachine is in opera` tion. A.The freezing-cistern vmay be provided` with4 rollers lr r, Figs. l and 2, to facilitate the moving of the cups or water-vessels into the place of those that have been thus taken out.

Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, is f l. The well K, provided with a space below the inletpipe J, having'a cock, K, through which to draw oft' the impurities, and also provided with' a strainer between the ends of pipes J and L, when arranged in an i`ce-ma chine to operate in the manner andfor the purpose specified. y V

2. The'arrangement of the sprayers G, in connection with the plugs a a, pipe E, and tubes C U, or tubular connections with the chambers B B, substantially as shown and described.

D. L. HOLDEN.

Witnesses i N. K. ELLsWoRTH, CEAS. A. PETTIT. 

